Try Some Statistical Applets

As you will notice all of the graphics have their data source set to http://www.stat.sc.edu/~bradley/state.txt. This can be changed by the user. If the "Load URL:" button is pressed the data from the new source will change the plots accordingly. I have some other data sets you can look at. In order to use these simply replace state.txt by one of the following: iris.txt, lake.txt, hamster.txt, rubber.txt, census.txt, bears.txt, MLB.txt, or bigdata.txt.